27545-53-5Relevant articles and documents
Microwave-assisted generation and reactions of nitrile sulfides
Morrison, Angus J.,Paton, R. Michael,Sharp, Robert D.
, p. 807 - 813 (2005)
An improved practical method is described for the generation of benzonitrile sulfide based on microwave-assisted decarboxylation of 5-phenyl-1,3,4-oxathiazol-2-one. Reaction times for the preparation of cycloadducts (e.g. isothiazoles and 1,2,4-thiadiazoles) derived from the nitrile sulphide are reduced from typically 15-30 h to approximately 15 min.
Nitrile Sulfides Part 16.1,2Synthesis of 1,2-benzisothiazolesvia nitrile sulfide cycloaddition reactions
Ross, John F.,Delipala, Christina,Watson, Matthew C.,Crosby, John,Paton, R. Michael
, p. 1 - 18 (2013/07/25)
The cycloaddition reactions of nitrile sulfides have been used to prepare benzisothiazole quinones and 1,2-benzisothiazole-5,6-dicarboxylates. The nitrile sulfides, generated by thermal decarboxylation of 1,3,4-oxathiazol-2-ones, reacted with 1,4-naphthoquinone to afford 3-substituted naphtho[2,3-d] isothiazole-4,9-diones (17), together with nitriles as by-products. The corresponding reactions with 1,4-benzoquinone yielded regioisomeric mixtures of 2:1 adducts. The 1,2-benzisothiazole-5,6-dicarboxylates were synthesised by a sequence involving both nitrile sulfide and Diels-Alder cycloaddition reactions. Dimethyl 3-phenylisothiazole-4,5-dicarboxylate (34), prepared from benzonitrile sulfide and dimethyl acetylenedicarboxylate (DMAD), was converted into the 4,5-bis(dibromomethyl) analogue 37 via the bis(dihydroxymethyl) compound 35. Treatment of 37 with sodium iodide in the presence of DMAD afforded dimethyl 3-phenyl-1,2-benzisothiazole-5,6-dicarboxylate (30) via the isothiazole o-quinodimethane 32. ARKAT-USA, Inc.
ISOTHIAZOLE-PYRIDINE DERIVATIVES AS MODULATORS OF HIF (HYPOXIA INDUCIBLE FACTOR) ACTIVITY
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, (2009/09/04)
The present invention relates to novel compounds according to Formula I or II, methods, and compositions capable of decreasing HIF hydroxylase enzyme activity, thereby increasing the stability and/or activity of hypoxia inducible factor (HIF). Formula (I) or (II).